Maxwell–Stefan modeling of the separation of H2 and CO2 at high pressure in an MFI membrane

Kangas, Jani; Sandström, Linda; Malinen, Ilkka; Hedlund, Jonas; Tanskanen, Juha

doi:10.1016/j.memsci.2013.02.026

Cited by 30 publications

(21 citation statements)

References 56 publications

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“…[206][207][208][209] These effects have been incorporated in some of the modeling studies by determining the permeation through the defects as a combination of Knudsen diffusion and Poiseuille flow. 210,211 A general pore network model has also been developed to account for the flux through intercrystalline pores. 212 …”

Section: Other Factorsmentioning

confidence: 99%

Zeolite membranes – a review and comparison with MOFs

et al. 2015

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aThe latest developments in zeolite membranes are reviewed, with an emphasis on the synthesis techniques, including seed assembly and secondary growth methods. This review also discusses the current industrial applications of zeolite membranes, the feasibility of their use in membrane reactors and their hydrothermal stability. Finally, zeolite membranes are compared with metal-organic framework (MOF) membranes and the latest advancements in MOF and mixed matrix membranes are highlighted.

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Section: Other Factorsmentioning

confidence: 99%

Zeolite membranes – a review and comparison with MOFs

et al. 2015

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“…19 The generalized Maxwell-Stefan model for gas adsorption and diffusion is presented in eqn (11) 19 The generalized Maxwell-Stefan model for gas adsorption and diffusion is presented in eqn (11)…”

Section: Zif-8 Membrane Layermentioning

confidence: 99%

“…20 In order to perform the calculation, eqn (19) and (20) are formed based on the pressure drop across the membrane. Therefore, the parameters of the intercrystalline pores (r and 3) presented to be the unknowns.…”

Section: Intercrystalline Pores Of Zif-8 Membrane Layermentioning

confidence: 99%

“…18 To date, the reported CO 2 /CH 4 separation performance of ZIF-8 membrane are inconsistent, with different CO 2 / CH 4 selectivity of $2.8, 6,14 $3.3 (ref. 19 Maxwell-Stefan model has been widely used to study the gas diffusivity through the membrane layers, 19,20 in relation to the fractional occupancy, thermodynamic factors 21 and the fugacity of the gas component at high pressure. 1 Meanwhile, the reported CO 2 permeance was ranging from 0.13 Â 10 À7 mol m À2 s À1 Pa À1 (ref.…”

Section: Introductionmentioning

confidence: 99%

“…4) and 7. 19 Meanwhile, the mass transfer resistance caused by the support layers has been demonstrated through Knudsen diffusion, Poiseuille or viscous ow 19,20 and bulk diffusion. 14) to 2.43 Â 10 À5 mol m À2 s À1 Pa À1 .…”

Section: Introductionmentioning

confidence: 99%

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CO₂ and CH₄ permeation through zeolitic imidazolate framework (ZIF)-8 membrane synthesized via in situ layer-by-layer growth: an experimental and modeling study

Yeong

Lau

et al. 2015

RSC Adv.

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In this work, a general model representing the permeation of CO 2 and CH 4 through Zeolitic Imidazole Framework-8 (ZIF-8) membrane synthesized via in situ layer-by-layer growth under microwave irradiation is developed. The model is formed based on the pressure drop concept in order to predict the intercrystalline properties of the ZIF-8 membrane according to the experimental permeation data of CO 2 and CH 4 . The model combines Knudsen diffusion, viscous flow and generalized Maxwell-Stefan models, which considered the support resistance, gas diffusivity and intercrystalline pores of the membrane layer. The simulated data are fitted well with the experimental gas permeation results and consistent with the physical characterizations, including X-ray diffraction (XRD) and scanning electron microscopy (SEM). Results showed that, layer-by-layer growth managed to reduce the intercrystalline pores present in the ZIF-8 membrane layer, with the approximate pore radius of 2.1 Â 10 À7 m and porosity of 1.15 Â 10 À4 . However, the presence of the small pores can significantly affect the performance of the ZIF-8 membrane which resulted in CO 2 /CH 4 ideal selectivity of $1.

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Mathematical modeling and parameter estimation of MFI membranes for para/ortho‐xylene separation

et al. 2021

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Maxwell–Stefan modeling of the separation of H2 and CO2 at high pressure in an MFI membrane

Cited by 30 publications

References 56 publications

Zeolite membranes – a review and comparison with MOFs

Zeolite membranes – a review and comparison with MOFs

CO₂ and CH₄ permeation through zeolitic imidazolate framework (ZIF)-8 membrane synthesized via in situ layer-by-layer growth: an experimental and modeling study

Mathematical modeling and parameter estimation of MFI membranes for para/ortho‐xylene separation

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Maxwell–Stefan modeling of the separation of H2 and CO2 at high pressure in an MFI membrane

Cited by 30 publications

References 56 publications

Zeolite membranes – a review and comparison with MOFs

Zeolite membranes – a review and comparison with MOFs

CO2 and CH4 permeation through zeolitic imidazolate framework (ZIF)-8 membrane synthesized via in situ layer-by-layer growth: an experimental and modeling study

Mathematical modeling and parameter estimation of MFI membranes for para/ortho‐xylene separation

Contact Info

Product

Resources

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CO₂ and CH₄ permeation through zeolitic imidazolate framework (ZIF)-8 membrane synthesized via in situ layer-by-layer growth: an experimental and modeling study